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<div class="title">qwt_transform.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#ifndef QWT_TRANSFORM_H</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#define QWT_TRANSFORM_H</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;qwt_global.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="class_qwt_transform.html">   35</a></span>&#160;<span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_transform.html">QwtTransform</a></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;{</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <a class="code" href="class_qwt_transform.html">QwtTransform</a>();</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_transform.html">QwtTransform</a>();</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> bounded( <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">   55</a></span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">transform</a>( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">   65</a></span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">invTransform</a>( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160; </div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="class_qwt_transform.html#aae011ee4205fa4391459766d88971809">   68</a></span>&#160;    <span class="keyword">virtual</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a>* <a class="code" href="class_qwt_transform.html#aae011ee4205fa4391459766d88971809">copy</a>() <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160; </div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    Q_DISABLE_COPY(<a class="code" href="class_qwt_transform.html">QwtTransform</a>)</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;};</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="class_qwt_null_transform.html">   80</a></span>&#160;<span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_null_transform.html">QwtNullTransform</a> : <span class="keyword">public</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;{</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <a class="code" href="class_qwt_null_transform.html">QwtNullTransform</a>();</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_null_transform.html">QwtNullTransform</a>();</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160; </div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> transform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> invTransform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keyword">virtual</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a>* copy() <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;};</div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="class_qwt_log_transform.html">  100</a></span>&#160;<span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_log_transform.html">QwtLogTransform</a> : <span class="keyword">public</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;{</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <a class="code" href="class_qwt_log_transform.html">QwtLogTransform</a>();</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_log_transform.html">QwtLogTransform</a>();</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160; </div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> transform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> invTransform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> bounded( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keyword">virtual</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a>* copy() <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160; </div>
<div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="class_qwt_log_transform.html#a0a34d790bb83966c9649b54f719d8f85">  113</a></span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_log_transform.html#a0a34d790bb83966c9649b54f719d8f85">LogMin</a>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="class_qwt_log_transform.html#a0501a8e7fe5215e2beab7e08e4a26cf8">  114</a></span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_log_transform.html#a0501a8e7fe5215e2beab7e08e4a26cf8">LogMax</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;};</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160; </div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="class_qwt_power_transform.html">  125</a></span>&#160;<span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_power_transform.html">QwtPowerTransform</a> : <span class="keyword">public</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;{</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="class_qwt_power_transform.html">QwtPowerTransform</a>( <span class="keywordtype">double</span> exponent );</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_power_transform.html">QwtPowerTransform</a>();</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> transform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">double</span> invTransform( <span class="keywordtype">double</span> value ) <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keyword">virtual</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a>* copy() <span class="keyword">const</span> QWT_OVERRIDE;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160; </div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> m_exponent;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;};</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160; </div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclass_qwt_log_transform_html"><div class="ttname"><a href="class_qwt_log_transform.html">QwtLogTransform</a></div><div class="ttdoc">Logarithmic transformation.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00100">qwt_transform.h:101</a></div></div>
<div class="ttc" id="aclass_qwt_log_transform_html_a0501a8e7fe5215e2beab7e08e4a26cf8"><div class="ttname"><a href="class_qwt_log_transform.html#a0501a8e7fe5215e2beab7e08e4a26cf8">QwtLogTransform::LogMax</a></div><div class="ttdeci">static const double LogMax</div><div class="ttdoc">Largest allowed value for logarithmic scales: 1.0e150.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00114">qwt_transform.h:114</a></div></div>
<div class="ttc" id="aclass_qwt_log_transform_html_a0a34d790bb83966c9649b54f719d8f85"><div class="ttname"><a href="class_qwt_log_transform.html#a0a34d790bb83966c9649b54f719d8f85">QwtLogTransform::LogMin</a></div><div class="ttdeci">static const double LogMin</div><div class="ttdoc">Smallest allowed value for logarithmic scales: 1.0e-150.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00113">qwt_transform.h:113</a></div></div>
<div class="ttc" id="aclass_qwt_null_transform_html"><div class="ttname"><a href="class_qwt_null_transform.html">QwtNullTransform</a></div><div class="ttdoc">Null transformation.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00080">qwt_transform.h:81</a></div></div>
<div class="ttc" id="aclass_qwt_power_transform_html"><div class="ttname"><a href="class_qwt_power_transform.html">QwtPowerTransform</a></div><div class="ttdoc">A transformation using pow()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00125">qwt_transform.h:126</a></div></div>
<div class="ttc" id="aclass_qwt_transform_html"><div class="ttname"><a href="class_qwt_transform.html">QwtTransform</a></div><div class="ttdoc">A transformation between coordinate systems.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00035">qwt_transform.h:36</a></div></div>
<div class="ttc" id="aclass_qwt_transform_html_a1093b5856cbc6cf812460535442fb130"><div class="ttname"><a href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">QwtTransform::transform</a></div><div class="ttdeci">virtual double transform(double value) const =0</div></div>
<div class="ttc" id="aclass_qwt_transform_html_a5cfb0a329b8418028baf6974b188d76b"><div class="ttname"><a href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">QwtTransform::invTransform</a></div><div class="ttdeci">virtual double invTransform(double value) const =0</div></div>
<div class="ttc" id="aclass_qwt_transform_html_aae011ee4205fa4391459766d88971809"><div class="ttname"><a href="class_qwt_transform.html#aae011ee4205fa4391459766d88971809">QwtTransform::copy</a></div><div class="ttdeci">virtual QwtTransform * copy() const =0</div><div class="ttdoc">Virtualized copy operation.</div></div>
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